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Alternaria phoenicis sp. nov. and Alternaria ouedrighensis sp. nov. (Pleosporales, Pleosporaceae): Two new species associated with leaf spot and blight diseases of date palm (Phoenix dactylifera L.)

by: Djellid, Youssef; Mahamedi, Alla Eddine; Spetik, Milan; Hakalová, Eliska; Eichmeier, Ales; Gonçalves, Micael Ferreira Mota; Lamghari, Fouad; Al Hmoudi, Maryam Ali Saeed Mohamed; Berraf-Tebbal, Akila

Publication date: 2025-8-15
Usage: Attribution 4.0 International
Topics: Alternaria, leaf spot and blight diseases, Phoenix dactylifera L., phylogeny, taxonomy
Publisher: Pensoft Publishers
Collection: biodiversity
Contributor: Pensoft Publishers
Language: English
Rights: https://biodiversitylibrary.org/permissions
Rights-holder: Copyright held by individual article author(s).
Volume: 120
Item Size: 26.2M

Abstract: Date palm (Phoenix dactylifera L.) is one of the oldest fruit crops grown in the semi-arid and arid regions, playing significant ecological, environmental and socio-economic roles. Recently, palm leaf spot and blight diseases have indeed emerged as significant threats to phoeniciculture. They reduce yield and quality of dates leading to economic losses. Therefore, a survey was conducted in four palm groves located in the Biskra and Ghardaia provinces of Algeria. This investigation revealed two new Alternaria species associated with leaf spot and blight symptoms on date palm. These newly identified species are designated as A. phoenicissp. nov. and A. ouedrighensissp. nov., which belong to the Ulocladioides and Embellisia sections, respectively. The isolates were phylogenetically identified using the key genetic markers of the genus including the large subunit ribosomal DNA (LSU), internal transcribed spacer region of the ribosomal RNA (ITS), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), RNA polymerase II subunit (RPB2), translation elongation factor (TEF1) and plasma membrane (ATPase) genes and illustrated based on the morphological characteristics.
Addeddate: 2025-09-04 04:31:51
Bhl_virtual_titleid: 210915
Bhl_virtual_volume: v.120 (2025)
Call number: 10_3897_mycokeys_120_144245
Call-number: 10_3897_mycokeys_120_144245
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Genre: article
Identifier: alternariaphoen120djel
Identifier-ark: ark:/13960/s2zmg53rsrc
Identifier-bib: 10_3897_mycokeys_120_144245
Identifier-doi: 10.3897/mycokeys.120.144245
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Page_range: 295-315
Pages: 21
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Possible copyright status: In copyright. Digitized with the permission of the rights holder.
Ppi: 300
Source: MycoKeys 120
Year: 2025